When notifying the flightdeck about a fire, which piece of information is NOT necessary?

When notifying the flight deck about a fire, understanding which information is essential for effective communication during an emergency is crucial. The information regarding the source and location of the fire helps the flight deck assess the situation's immediacy and determine necessary actions. Similarly, describing the nature of the fire with specific details enables the flight crew to prioritize their response effectively. Additionally, informing them about the type of fire is vital, as different substances require specific extinguishing methods.

In this context, providing the names of the passengers near the fire is not a necessary detail when making this urgent report. The flight crew must focus on immediate operational concerns—such as the fire's location, nature, and type—rather than individual identities, which can be managed later. This prioritization ensures a faster and more accurate response to the emergency situation, safety measures being the utmost priority during such critical moments.